Caster



2 Shets--Sheet 1.

(No Model.)

W. J. GROSSLEY COMPOUND GAS OR QI'L MOTOR ENGINE. No. 406.706.

Patented July 9., 1889..

N. PETERS, Phowljlhcgnyher. Washingiun. 0J3

2 sheets-"shat 2.

(No Model.)

W. J. OROSSLE-Y. COMPOUND GAS 0R OIL MOTOR ENGINE.

No. 406,706. Patented July 9, 1889.

Q SQQQPQSQ N. PFIERS. Photo-Lilhngmpher. Washinglull. Dv C UNITED STATES PATENT OFFICE.

WVILLIAM J. CROSSLEY, OF OPENSHAV, MANCHESTER, COUNTY OF LAN- CASTER, ENGLAND, ASSIGNOR TO THE GAS-MOTOREN-FABRIK-DEUTZ, OF DEUTZ-ON-THE-RHINE, GERMANY.

COMPOUND GAS OR OIL MOTOR-ENGINE.

SPECIFICATION forming part of Letters Patent No. 406,706, dated July 9, 1889.

Application filed Ja m a1, 1889. Serial No. 298,270. (No model.) Patented in England February 4, 1888, No. 1,705 in France January 12, 1889, No. 195,331, and in Belgium January 15, 1889,11'0. 84,635.

To all whom it may concern.- Figure 1 of the accompanying drawings is Be it known that I, WILLIAM JOHN CROSS- a longitudinal section of an engine according LEY, a citizen of England, residing at Opento my invention, this section being taken shaw,l\Ianchester, in the countyof Lancaster, nearly on the middle line between the two 5 England, have invented a new and useful cylinders. Fig. 2 is a sectional plan. Fig. 3

Compound Gas or Oil Motor -Engine, (for is a transverse section on the line X Z. which I have obtained patents in Great Brit- Thetwo cylindersA and B, placed parallel ain dated February 4, 1888, No. 1,705; in to one another, have their pistons C and D France, dated January 12, 1889, No. 195,331, made with rods which project through stuff- 10 and in Belgium, dated January 15, 1889, No. ing-boxes at the front ends of the cylinders 84,635,) of which the following is a specificaand are connected to a single crank S on the tion. fly-wheel shaft. Each cylinder is provided My invention relates to the construction with the usual charging and ignitingvalveand arrangement of a gas or oil motor-engine gear worked from counter-shafts T, revolving r 5 in such a manner that it operates as a comat half the speed of the fly-wheel shaft. These pound engine-that is to say, the gaseous counter-shafts also work, as usual, the exproducts of combustion, afterpropellingapishaust-valves E and F; but these, instead of ton, are utilized for performing further work opening into a discharge-pipe leading to the by acting expansively on a larger area of outer air, open into a central passage-way or 20 piston before being finally discharged as expipe G, which leads to ports I and J at the haust. For this purpose I arrange side by front ends of the two cylinders, and to a disside two cylinders having their pistons both charge-valve H, which may be worked from connected to one crank, so that they move to either of the counter-shafts T, so as to be and fro together. Each of these cylinders is opened twice in every revolution of T.

2 5 provided with governing, charging, and dis- The bevel or skew gear K, by which the charging valves worked as in gas or oil moshafts T T are worked, is set so to move the tor-engines of the Otto kind; but the action valves that while the one piston is making its of the valves for the one cylinder is so timed outstroke, receiving behind it a combustible in regard to the action of the valves for the charge, the other piston is being propelled by 0 other cylinder that when the one piston is the firing of a charge, and while the one pisdrawing in charge the other piston is being ton is making its return-stroke, compressing 8o propelled, and when the one piston is comthe charge behind it, the other piston is expressing charge the other is expelling propelling exhaust. The exhaust-valves E and ducts of combustion, all these operations be- I being alternately opened, the exhaust-gases 3 5 ing performed in the usual way at the rear expelled either from A or from B pass along ends of the cylinders. The cylinders are the passageway or pipe G to both the ports closed at their front ends, where their piston- I and J and enter both cylinders, expandrods pass through stuffing-boxes, and there is ing therein and propelling both pistons backa communication from the discharge-valves ward. At every forward stroke of the pis- 0 of both cylinders to the front ends of both, tons the valve II is opened, allowing escape and thence to an exhaust-valve common to of the products of combustion which had ex- 0 both. As both pistons make their back-stroke panded in both cylinders. I11 this manner the together, one of them expelling products of expansion of theproducts of combustion from combustion, these products, instead of escapeach single cylinder into the. two cylinders,

5 ing as exhaust, passto the front ends ofboth which present nearly double the capacity of cylinders and press on both pistons, expandthe single cylinder, is utilized as in a coming to nearly double their volume, and therepound engine to aid the pistons in their backafter during the forward stroke of the pistons stroke.

I they are expelled as exhaust. WVhen the governor of the engine cuts olf the supply of combustible to the rear end of either cylinder, so that there are no products of combustion to expand in the frontends, the discharge-valve opens, admitting air to the front ends.

Having thus described the nature of my invention and the best means I know of carrying the same out in practice, I claim 1. A compound gas or oil motor-engine consisting of two cylinders having dischargevalves at the rear ends, the two reciprocating pistons, an exhaust -valve common to the front ends of both cylinder, and a passage-Way leading from the said discharge-valves and communicating with the front ends of both cylinders to conduct the gaseous products from behind each piston into the spaces in front of both pistons,wl1ere such products expand and are discharged through the exhaustvalve common to both cylinders, substantially as described.

2. Acompound gas or oil motor-engine consisting of two cylinders located side by side, having at their rear ends alternately-opened discharge valves and provided with front communicating ends, the two pistons connected with a single crank-shaft to move to and fro together, an exhaust-valve opened at intervals and common to the front open ends of both cylinders, and a passage-way interposed between the cylinders and leading from the said discharge-valves to and communicating with the front ends of both cylinders and the exhaust-valve to conduct the gaseous products from behind each piston into the spaces in front of both pistons, Where such products expand, move the pistons rearward, and then discharge through the exhaust-valve common to both cylinders, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 14th day of J anuary, A. D. 1889.

NV. J. CROSSL EY.

Witnesses:

G. 0. SMITH, Solicitor, ZIIcmches-ter. R0121. ToMLINsoN, V

N ota-rys Clerk, 44: 11105101] St, 11:! (makes-fer. 

